USN-3023-1: Thunderbird vulnerabilities

18 July 2016

thunderbird vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 16.04 LTS
  • Ubuntu 15.10
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS

Summary

Several security issues were fixed in Thunderbird.

Software Description

  • thunderbird - Mozilla Open Source mail and newsgroup client

Details

It was discovered that NSPR incorrectly handled memory allocation. If a user were tricked in to opening a specially crafted message, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code. (CVE-2016-1951)

Christian Holler, Gary Kwong, Jesse Ruderman, Tyson Smith, Timothy Nikkel, Sylvestre Ledru, Julian Seward, Olli Pettay, and Karl Tomlinson, discovered multiple memory safety issues in Thunderbird. If a user were tricked in to opening a specially crafted message, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code. (CVE-2016-2818)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04 LTS
thunderbird - 1:45.2.0+build1-0ubuntu0.16.04.1
Ubuntu 15.10
thunderbird - 1:45.2.0+build1-0ubuntu0.15.10.1
Ubuntu 14.04 LTS
thunderbird - 1:45.2.0+build1-0ubuntu0.14.04.3
Ubuntu 12.04 LTS
thunderbird - 1:45.2.0+build1-0ubuntu0.12.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart Thunderbird to make all the necessary changes.

References